Recently, a number of different classes of additives have been reported as being useful for accelerating grafting reactions initiated by W and ionizing radiation. Thus, inclusion of mineral acid in the monomer solution was shown to enhance photografting yields when styrene was copolymerized to cellulose's2 and the p~lyolefins'.~~~ under the influence of UV from a high pressure lamp in the presence of typical sensitizers such as benzoin ethyl ether (BEE). The inclusion of polyfunctional monomers (PFMs)
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